Document Detail


The effect of parity violation on kinetic models of enantioselective autocatalysis.
MedLine Citation:
PMID:  18167589     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
A detailed analysis of enantioselective autocatalytic reaction models is carried out using both deterministic and stochastic approaches. The models include the small differences between the total energies of enantiomers (DeltaE(PV) approximately 10(-13) J mol(-1)) that arise due to parity violation. Different possible orders of autocatalysis are considered, and the reasons why the predictions of the stochastic and deterministic approaches are different under certain conditions are explored. The continuous time discrete state (CDS) stochastic approach is clearly superior to the deterministic approach. It is concluded that the small difference between enantiomers caused by DeltaE(PV) cannot be amplified under conditions reasonable for the generation of biological chirality. It also seems highly unlikely that biological chirality was determined by any intrinsic difference between enantiomers.
Authors:
Gábor Lente
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-10-11
Journal Detail:
Title:  Physical chemistry chemical physics : PCCP     Volume:  9     ISSN:  1463-9076     ISO Abbreviation:  Phys Chem Chem Phys     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2008-01-02     Completed Date:  2008-02-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888160     Medline TA:  Phys Chem Chem Phys     Country:  England    
Other Details:
Languages:  eng     Pagination:  6134-41     Citation Subset:  -    
Affiliation:
Department of Inorganic and Analytical Chemistry, University of Debrecen, P.O.B. 21, Debrecen, H-4010, Hungary. lenteg@delfin.unideb.hu
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